Archeological excavations at Presidio San Agustín de Ahumada,

Description

Transport Protocols for Department of Defense Data Networks Copyright Contents PREFACE EXECUTIVE SUMMARY Department of Defense's Transmission Protocol International Standards Organization's Transport Protocol DOD OPERATIONAL AND TECHNICAL NEEDS SOME COMPARISONS SOME ECONOMIC CONSIDERATIONS RECOMMENDATIONS Option 1 Option 2 Option 3 Comparison of Options I. INTRODUCTION II. REVIEW OF NBS AND DOD OBJECTIVES NBS OBJECTIVES Development of Networking and Protocol Standards Development of Testing Methodologies Assisting Users and Manufacturers DOD OBJECTIVES Performance and Functionality Interoperability Minimize Costs Ease of Transition and Manageability III. COMPARISON OF DOD AND ISO PROTOCOLS COMPARISON OF DOD AND ISO TRANSPORT LAYERS Data Transfer Interface Flow Control Error Detection Simultaneous Call Between Same Users Multiple Calls Between Same Addresses Addressing Binding User Entities to Connections Out-of-Band Signals Security Precedence Type of Service Datagram Service Closing COMPARISON OF DOD AND ISO INTERNET LAYERS COMPARISON ON THE BASIS OF PERFORMANCE, SECURITY, AND RISK Performance Security Risk Fatal Flaws in Protocol Design Errors and Ambiguities in Protocol Specification Errors in Protocol Implementation Performance Issues IV. STATUS OF DOD AND ISO PROTOCOL IMPLEMENTATIONS AND SPECIFICATIONS DEPARTMENT OF DEFENSE INTERNATIONAL STANDARDS ORGANIZATION TP-4 Status and Plans Internetwork Protocol Status and Plans V. MARKETS DEPARTMENT OF DEFENSE NETWORKS MARKET STATUS AND PLANS System Descriptions Integration INTERNATIONAL AND NATIONAL STANDARD MARKET DEMAND FOR TP-4 National Support of International Standards MARKET SEGMENTS NOT REQUIRED TO USE TCP OR TP-4 VI. DEVELOPMENT OF STANDARD COMMERCIAL VERSUS SPECIAL COMMERCIAL PRODUCTS PRODUCT DEVELOPMENT VERSUS SYSTEM INTEGRATION CRITERIA FOR SELECTION OF STANDARD PRODUCTS STANDARD VERSUS SPECIAL PRODUCT Special-Product Process Standard-Product Process CONCLUSION VII. RESPONSIVENESS OF INTERNATIONAL STANDARDS PROCESS TO CHANGE VIII. OPTIONS FOR DOD AND NBS Option 1 Option 2 Option 3 IX. COST COMPARISON OF OPTIONS COST FACTORS AND MODEL Savings Using Commercial Software How Soon Will TP-4 Be Used? Cost of Decision to Use TP-4 Marginal Costs of Maintaining Two Standards Evaluation of Options by Cost X. EVALUATION OF OPTIONS SUMMARY DEFENSE DEPARTMENT OBJECTIVES VERSUS OPTIONS Functional and Performance Objectives Maximizing Interoperability Minimizing Procurement, Development, and Support Costs Ease of Transition Manageability and Responsiveness to DOD Requirements EFFECT OF PROPOSED OPTIONS ON MARKET SHARE XI. RECOMMENDATIONS BASIC RECOMMENDATION DETAILED RECOMMENDATIONS ADDITIONAL CONSIDERATIONS Transition Plan Demonstration Plan Switchover of User Systems Lessons Learned from the ARPANET NCP-to-TCP Transition